Tractor-wheel.



H. HANSEN & J. A. MONTGOMERY.

TRACTOR WHEEL. APPLICATION FILED SEPT. 9. i9! 5.

" Patented Apr. 11, 1916.

Z'SHEETS-SHEET I.

' "IN/#158858 fiwiw 95 M.

- v r 117mm f lm/mm:

I H. HANSEN mfkmwmcmgm. TRACTOR-WHEEL.

' APPLICATION FILED SEPT. smsfis.

' Patented Apr. 11, 1916.

2 SHEETS-SHEET 2.

. To all whom it may concern:

T we-man. amen JAMES a. mo'ivrconnnlrann imam: Hansen, or "c tizen, oa'mronivra.'

,j 'rnAcron-wnnnn.

Be it known that we, JAMES AfMoN'r- GOMERY and HENRY HANSEN, citizens of the United States, and residents of Ukiah, in the county of Mendocino and State of California, have invented a new and Improved Tractor-Wheel, of which the following is a full, clear, and exact description.

- i This invention relates to traction vehicles wheels having an endless flexible-belt tread and has particular reference to tractor and a main load supporting wheel cooper: ating with said tread;

Among, the objects of the invention is to simplify and generally improve this class of devices in respect to the reliability of operation and durability. With the foregoing and .other objects in view the invention consists in the arrange ment antl combination of parts hereinafter described and claimed, and While the invention is not restricted to the exact details of construction disclosed herein,;still for the purpose of illustrating a practical embodi ment thereof reference is had, to the accompanying drawing%, in which like reference characters designate the same parts in the several views, and in which Figure 1 is a side elevation of our improved tractor wheel; Fig. 2 is a vertical transverse section on the line of Fig. f 1; and Fig. 3 is a transverse sectional detail on theline 33 of Fig. 1

Referring now more particularly to the drawings, we provide an endless flexible tread member in the form of a chain belt comprising a plurality of chains 10 shown as four in number operating in parallelism and I .4 of the same length. These chains comprise they areturned inwardly sli .the nextshoe.- shoes are substantially flat with respect to.

links 11, pivoted to one another at 12 and arranged in pairs, the chain links of each pair of links being connected by the same pivots 12.

' The traction portion of the belt comprises a series. of corrugated shoes 13 each having a lip 13 overlapping the admcentend of The corrugations of the the longitudinal dimension. They are also substantially flat transversely except that htly at the side edges, as indicated at 13% ach shoe is connected to an arch member l l'coinprising inner and outer V-shaped parts 14* and. 14 The feet portions of these arches-are arranged in parallel vertical planes, the feet Specification of'Letters Patent. Patented Apr ll" 1915; Application tiled September 9,1915. Seria'1No. 49;709. I I l lel'and 14" en one side of the structure be ing connected to one 'pair 0f chains 10 while connected to the other pairof chains. These the corresponding'feet on the other sideare feet are connected to the several chains by means of strong'rivets 15 or their equivalent.

lent near the apex of the arch. The inner member 14 1s concaved or curved away from the ape of theother member'leaving a longitudinal bearing socket for the bolt: -17

serving to pivotally' connect the adjacent.

shoe to such arch. The ends of the bolt or long tudinal pivot 17. are connected. in in.

wardly projecting ears 18 of the shoe, such I ears being formed as parts ofthe reinforcing plate 119 secured, on the inner face of each shoe. This; pivotal connection between the shoes and the chains provides for a certain amount of free, lateral tilting of the several'shoes over rough or uneven surfaces. I The structure includes two pairs oi sprocket wheels 20, each pair being connected by a transverse'shaft 21. Each wheel 20' comprises .a.di sk-like web between its hub v and the rim 22. Each rim-22 consists of,

a -smooth bearing flange for *cotiperatioh WllSl'l the out-er chain of each pair, and a secooperating with f ries of sprocket teeth 23 the pivot pins 12.1,

Asabove premised, the primary load-sup- I portof the structure consists of a smoothfaced wheel 24:, mounted upon an axle 25,

uponwhich the vehicle. and the motor may be supported. The inner chains of the two-1 with the smooth periphery'of the load support 24; and midway between the vertical planes ofthe shafts 21. The shaft 25 is pairs of chains have direct bearing contactjourrialed in bearings 26 guided for vertical' j reciprocation between guides or struts "27', which together withdongitudinal bars1 28,

of the load supp rt and drivingsp'rocket constitute a pair trusses on'opposite sides wheels. The e dof the truss bars 28 are rigidly 'co'nnect d to bearing blocks .29 in' which the sha'ftsf 21 are journaled. The

bearings 26 are resiliently spacedfrom the; upper and lower bars 28 by means of cushions in the form of coil springs 30, which relieve the machine or vehicle from excessive shocks due to the passage over i stony or-otherwise rough-surfaces. I l indicates a motor shaft journaled in the bearing 32 secured to the upper portion of iaise twee, The end of the ghafls' 31 fi-i-llflfiS rir1ving'p1mon 33 haying rolier 3% eoopemtmg LilffiiiiilY with the driving rvkei teetli-25 The driving pinion is suitably located and of such a size as to (minaret/e chrectly Wltli both driving eproolzeir-wlleels on the Same side of the:

tracioig-am'l since the sprocket Wheels on iilie other 'sicie of the stmeture are rigidly connected ihmngili their shafts 21 teithe sprocket Wheels driven by the pinion. there I is a substantially rigid driving connection 25 em the mote-n to all of the sproekei;

ii in a tractor Wheel, the combination of including; a plurality of chains cooperating with iiie load supporting Wheel periphery and time smooth portions of the inaction wheels, aid chains being arranged in pairs, -the links of adjacent pairs being-"connected by pivots cofigemting with the toothed POT- tions of traction Wheels, and means to rotate flieiimction Wheels.

In a imetor Wheel the combination of a plurality ozf chains, means to positively propel the chains in parallelism, a series of rigid arches eonnecteol to all of the chains,

said arohes having their npexes extending longlisudmaily and centrally of the tractor and a series of trend shoes pivotally 0on .nectecl to said epexes.

3, In air-actor wheel, the combination of two pairs of slprocket chains opemted in parallelism, means to propel the chains, a series of arches, each arch comprising inner and outer. arch members, the outer arch members being connected to the outermost chains and the inner ai eh' member being i connected to the innermosi chains and a series of tread shoes connected to the apex portions of the arches.

- JAMES A. Meme-Miriam HENRY HANSEN Witnssesz; L. Penman,

C. Cmzonmne. 

